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steel / iron welding tube for aluminum / copper / plastic film foil core
1. Our chemical composition
| ID | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Al (%) | Rem |
| 75 | ≤ 0.20 | ≤ 0.35 | ≤ 0.60 | ≤ 0.40 | ≤ 0.40 | |||
| 76.2(76) | ≤ 0.20 | ≤ 0.35 | ≤ 0.60 | ≤ 0.40 | ≤ 0.40 | |||
| 150 | ≤ 0.25 | ≤ 0.35 | 0.30 ~ 0.90 | ≤ 0.40 | ≤ 0.40 | |||
| 152.4 | ≤ 0.25 | ≤ 0.35 | 0.30 ~ 0.90 | ≤ 0.40 | ≤ 0.40 |
2. Our mechanical property
| Specification
Item | 75 | 76 | 76.2 | 152.4 | 200 |
| Elongation % | ≥ 17 | ≥ 17 | ≥ 17 | ≥ 17 | ≥ 17 |
| Tensile strength (N/mm2) | ≥ 390 | ≥ 390 | ≥ 390 | ≥ 490 | ≥ 490 |
| Yield strength N/mm2) | ≥ 275 | ≥ 275 | ≥ 275 | —— | —— |
3. Our tolerance and specifications
| spec
item | 76.0 tube | 76.2 tube | 152.4 tube | 152.4 tube |
| ID and tolerance | 76.2 + 0.05 / - 0 | 76.2 + 0.05 / - 0 | 152.4 + 0.05 / - 0.05 | 152.4+0.10 / -0.10 |
| OD | 80.2 | 81.2 | 160.4 | 164.4 |
| Wall thickness and tolerance | 2.0 + 0.05 / - 0 | 2.5 + 0.05 / - 0 | 4.0 + 0.05 / - 0.05 | 6.0 + 0.05 / - 0.05 |
| Bend rate(mm/m) | ≤ 0.3 | ≤ 0.3 | ≤ 0.3 | ≤
Contact Infomation
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Company name:Zhenjiang Runfa Aluminium Co., Ltd
Status:[Offline] [Send message] [Chat] Business contact:Mrs. Tracy Lee (Ms.) Telphone: ![]() Mobile: ![]() Fax: ![]() Area: Caribbean Region-Bermuda ![]() Address:No.79, Hengyuan Road , Dantu Indstrial Zone Zip:215000 |




